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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Allowance for Loan and Lease Losses by Type of Methodology) (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	$ 23,106		$ 24,840
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,570		3,681
Allowance for loan and lease losses	24,676	$ 25,675	28,521	$ 30,817	$ 27,464	$ 19,520
Financing Receivable, Collectively Evaluated for Impairment	2,118,336		2,123,852
Financing Receivable, Individually Evaluated for Impairment	7,486		26,663
Loans and Leases Receivable, Gross	2,125,822		2,150,515
Total commercial real estate
Financing Receivable, Allowance for Credit Losses
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	15,634		16,657
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		500
Allowance for loan and lease losses	15,634	16,876	17,157	20,180	16,438	10,852
Financing Receivable, Collectively Evaluated for Impairment	1,386,226		1,348,738
Financing Receivable, Individually Evaluated for Impairment	1,500		10,398
Loans and Leases Receivable, Gross	1,387,726		1,359,136
Total commercial and Industrial
Financing Receivable, Allowance for Credit Losses
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	6,646		7,419
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	1,570		3,174
Allowance for loan and lease losses	8,216	7,881	10,593	9,822	10,179	8,078
Financing Receivable, Collectively Evaluated for Impairment	691,889		738,445
Financing Receivable, Individually Evaluated for Impairment	5,986		16,204
Loans and Leases Receivable, Gross	697,875		754,649
Total consumer and other
Financing Receivable, Allowance for Credit Losses
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment	826		764
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment	0		7
Allowance for loan and lease losses	826	$ 918	771	$ 815	$ 847	$ 590
Financing Receivable, Collectively Evaluated for Impairment	40,221		36,669
Financing Receivable, Individually Evaluated for Impairment	0		61
Loans and Leases Receivable, Gross	$ 40,221		$ 36,730

X

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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